133148-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133148-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,4 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133148-91:
(8*1)+(7*3)+(6*3)+(5*1)+(4*4)+(3*8)+(2*9)+(1*1)=111
111 % 10 = 1
So 133148-91-1 is a valid CAS Registry Number.
133148-91-1Relevant academic research and scientific papers
CONJUGATE ADDITION REACTIONS OF ENANTIOMERICALLY PURE ACYLKETENE ACETALS AND ETHYLLITHIUM. A PRONOUNCED SALT EFFECT.
Konopelski, Joseph P.
, p. 465 - 466 (2007/10/02)
The order of addition of salt-free ethylithium/benzene solution to enantiomerically pure acylketene acetal 1 dictates the product formed in a chemospecific manner.Introduction of lithium bromide removes the distinction.
